INTERNET FOR EVERYONE

After Tesla and SpaceX, PayPal founder Elon Musk is turning his attention back to the internet: he’s awaiting permission to send almost 4,000 small satellites into low-Earth orbit that would beam back a high-speed wireless signal to everyone on the planet. And things are moving fast: Musk hopes to launch a series of test satellites in 2016, with a view to completing the project by 2020. He has competition to get there first though, as British billionaire Richard Branson also wants to cover the world with wi-fi.